Method of making chocolate sirup



Patented Apr. 19,

UNITED STATES PATENTLOFF'ICE n'x WALLEBBTEII, OI YORK H. Y, AS81610! TO WALLEBBTEINGOIQAHY, 1 30.,"

01' mrw YORK, I. Y A. CORPORATION 01' YORK, J

IM'EOD 01' we GHOOOLATE Io nnwm This invention relates to. an improved method or process of producing a substantial- 1y non-thickening chocolate flavored sirup of the kind which is usually prepared from in suitable proportions, t I e proportion of the cocoa powder generall used being from 10-15% of the amount 0 sugar used. To this mixture suficient water is added to make a paste, and then more water in suficient quantity to dissolve the sugar and give the sirup the proper concentration, this usually corresponding to a density of 30-40 B. at room temperature. This mixture of su ar, cocoa powder and water is then slowly eated to about 85 (3., with constant stirring, being at times brought to a boil. After this heating the density of the sirup is adjusted to the desired consistency by the addition of water, and the finished sirup is then-canned and sterilized, or a preservative such as benzoatt purpose must e such that under the required or alter proof soda is added.

Such chocolate flavored siru s when freshly prepared are smooth, flow reely and are readily pourable. Such sirups, however, retain these properties for a comparatively short time and after a certain period, which varies from a few weeks to a few months, the sirup changes in appearance and physical characteristics. Such sirups gradually thicken so that they are dificult to pour, and frequently set entirely so that they cannot be poured and are thus useless, and on this account are objectionable to the trade, and because of this the ordinary custom has been to supply the trade with as nearly fresh sirup as possible in order to prevent loss on account of this tendency to thicken in the mass.

The causes of this thickening or setting of this kind of sirup are not entirely understood, but in a copending a plication-Serial No. 265,222, filed March 2 1928, l have de-.

scribed a method discovered by me for preventing the thickening or setting of the sirup,

. which usually occurs after the same has been Application fled larch 28, 1931. Seriallo. 528,117;

kept for a considerable time, b treatingthe cocoa mass, before it is finishe into a sirup, with an amylolytic enzyme, such as malt ex tract, under proper conditions so that the valuable cocoa fats are retained in the siru the process being carried out under suitab e control of the water content. Such sirup is of good keeping qualities, remains fluid substantially stable and freel flowable, and does not set to any substanti extent.

--It is the particular object of the present invention to improve this process and to pr0- duce a sirup which is freely flowable, substantially stable and non-thickening, and in which protein substances contained 'in" the cocoaare so altered or modified that they become soluble and more readily digestible, this sirup having a smoother texture and a greatly improved flavor, and which sirup.

also at the same time retains the cocoa fats I have discovered that a much improved sirup can be obtained by treating the cocoa mass with both an amylolytic enzyme and a proteolytic enzyme under suitable conditions as to temperature, pH, and water content.

The proteol ic enzyme to be used for this conditions it will act to modi tem. substances contained in t e cocoa mass.

A proteolytic enzyme well ada ted for this purpose is the enzyme papain. e quantity to be used depends, of course, upon the proteolytic activity of the enzyme, and as a general rule I have found that 1 part of pa sin to each 200-300 parts of cocoa is a SdlJlSEtClJOIY proportion. a

As a specific example for carryin out my improved process, I proceed as fol ows: 100 lbs. of cocoa powder or cocoa nibs, which have first been crushed and ground, are mixed with 40 gallons of water at apl-l of 5.5. To this is added 4 lb. of malt "extract having a diastatic or converting power of 120 Lintner, and the mass is slowly heated to about 80 C. At this tem erature a thickening or gelatinization of t e cocoa paste sets in and after about one hour, with the temperature preferabl raised to 90 C., the gelatinizationis su cientl complete for the enzymatic treatment. e mass is then cooled down to 40 C. and 1 lb. of maltextract having 120 Lintner, previousl dis solved in a little water, is mixed in, an then there is added to the mass lb. of papain. The mass is thenkept for about four hours at C. and the temperature raised to C. and kept there for twelve hours. By this procedure the starchy constituents of the cocoa are practically all saccharified and the proteolytic enzyme of the papain has altered or modified rotein substances so that they become solub e and more digestible.

After this digestion, 800-900 lbs. of sugar are added and dissolved under constant stirring, and the sirup is then adjusted to the desired concentration by heating and may then be filled into suitable containers.

In the best practice of the invention, when making sirup of a sugar concentration higher than 60% of the sugar content, it is necessary to invert suficient of the sucrose to prevent crystallization, such inversion being carried out separately either by the enzyme, invertase or by diluted tartaric acid.

Althou h I have given papain as a matter of examp e, I do not restrict myself to the use of this enzyme, as other proteolytic enzymes, such asbromelin, which have the power to modify or alter the protein substances contained in the cocoa are suitable and may be used within the scope of the process.

By this process I have produced a freely flowable, substantially stable non-thickening cocoa or chocolate sirup which maintains its freely flowable characteristics afte: long periods and in which the cocoa fats are retained. It has also been established by accurate tests that this chocolate sirup aids in digesting milk. This has been proven by the fact that the curd of the milk to which this chocolate sirup has been added is in a much finer and more flocculent condition, and more guickly and more readily acted upon by the igestlve juices of the stomach.

What is claimed is:

1. The process of producing a fluid, substantially stable non-thickening chocolate flavored sirup from cocoa, which consists in subjecting a pastv or sirupy mixture of cocoa and water to the action of an amylolytic enzyme and a proteolytic enzyme until the conversion of the starch in the cocoa is substantially complete and the protein content is modified and altered, under such conditions of concentration that the cocoa fats are retained in an emulsified condition and the mixture remains freely flowable, and then finishing into a chocolate flavored sirup.

2. The process of producing a fluid, substantially -stable non-thickening chocolate flavored sirup from cocoa, which consists in subjecting a pasty or sirupy mixture of cocoa and water to the action of an amylolytic enzyme and papain until the conversion of the starch in the cocoa is substantially complete and the protein content is modified and altered, and adjusting the concentration of the mass so that the cocoa fats are retained in an emulsified condition and the-mixture remains freely flowable, and then finishing into a chocolate flavored sirup;

3. The process of producing a fluid, sub

an emulsified condition and the mixture remains freely flowable, and then finishing into a chocolate flavored sirup.

In testimony whereof, I have hereunto set my hand.

. MAX. WALLERSTEIN. 

